diff --git a/tools/tests_in_valgrind.sh b/tools/tests_in_valgrind.sh
index f2f0a4255e..ef0299a56e 100755
--- a/tools/tests_in_valgrind.sh
+++ b/tools/tests_in_valgrind.sh
@@ -22,7 +22,7 @@
 make
 
 if [ $? = 2 ] ; then
-    echo "Did you run configure? Do you call me from the top bind10 directory?" >&2
+    echo "Did you run configure? Or maybe you're running the script from the tools directory? (you need to run it from the top bind10 build directory)"
     exit 1
 fi
 
@@ -70,6 +70,6 @@ if test -n "$FAILED"; then
 fi
 
 if ! $FOUND_ANY ; then
-    echo "No test was found. It is possible you configured witouth --with-gtest or you run it from wrong directory" >&2
+    echo "No test was found. It is possible you configured without --with-gtest or you run it from wrong directory" >&2
     exit 1
 fi
diff --git a/tools/valgrind_test_cleaner.pl b/tools/valgrind_test_cleaner.pl
index 5ebf297f43..9928e9f643 100755
--- a/tools/valgrind_test_cleaner.pl
+++ b/tools/valgrind_test_cleaner.pl
@@ -14,6 +14,13 @@ use warnings;
 #
 # Of course, the rest still can contain many uninteresting entries.
 
+# Yes, it's perl even when we use python. I wrote it for myself when
+# I needed to clean the outputs and after it proved useful to me, I
+# thought it might be for others too, so I just included it. It's not
+# that we would be switching to perl. If it should grow in future to
+# include more heuristics and do something more fancy, we should probably
+# rewrite it in python instead.
+
 my ($block, $blockOK);
 
 sub endBlock(_) {